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13-09-2016
Mathematics

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The product of a 3 and –2a2 15a 6 is –2a3 xa2 51a 18. What is the value of x?

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nobillionaireNobley nobillionaireNobley

13-09-2016

(a + 3)(-2a^2 + 15a + 6) = -2a^3 + 15a^2 + 6a - 6a^2 + 45a + 18 = -2a^3 + 9a^2 + 51a + 18

Therefore, x = 9.

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